Home > Mineral Descriptions > Magadiite



Magadiite
NaSi7O13(OH)3 · 4H2O

     Magadiite is a very rare mineral at MSH.

PHYSICAL CHARACTERISTICS:

Color is usually white.
Luster is dull to vitreous.
Diaphaneity is translucent.
Crystal System is monoclinic; P.
Crystal Habits include powdery aggregates.
Cleavage (??).
Fracture is (??).
Hardness is (??).
Specific Gravity is approximately 2.25 g/cm3.
Streak is white.
Associated Minerals include apophyllite group, bavenite, pectolite,
   phlogopite, quartz and thaumasite.
Distinguishing Features: difficult to powdery nature.
Origin: Named in 1967 after its discovery locality, near Lake Magadi
   Kenya.

CLASSIFICATION:

Dana System
# 78.7.12.1

Strunz Classification
# VIII/H.39-20

REFERENCES:
MinRec 21:321 (1990), Dana 8:1717-1718 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
¤¤

SS
--

MC
--

HF
--

BR
--

SX
--

FR
--

Legend